Solve the buying problem
A 120-inch picture from a lens 9.5 ft away needs a throw ratio of about 1.09. The Hisense M2 Pro and JMGO N3 Ultimate cover it. The XGIMI HORIZON 20 and Epson Flex Plus do not. If someone watching needs simultaneous-color imaging, neither of those first two is the right escape route.
A situation you might recognize
Change any of these constraints and the sensible purchase can change too.
Your room, your viewers
2 of these 5 models pass the selected requirements
120-inch image · 9.5 ft from lens · required ratio 1.090
| Model | Lens distance needed | Room fit | Viewer requirement |
|---|---|---|---|
| Hisense M2 Pro | 8.72 to 11.33 ft | Within optical range | No filter applied |
| JMGO N3 Ultimate | 7.67 to 14.82 ft | Within optical range | No filter applied |
| XGIMI HORIZON 20 | 10.46 to 13.07 ft | Outside optical range | No filter applied |
| Epson Flex Plus | 10.46 to 10.46 ft | Outside optical range | No filter applied |
| Epson Home Cinema 3800 | 11.50 to 18.74 ft | Outside optical range | No filter applied |
Image width = diagonal × 16 ÷ √337. Required throw ratio = lens distance in inches ÷ image width. The model’s documented optical range must contain that ratio. Rounded boundaries need the exact installation table. A fit here does not establish brightness, focus at every lens-shift position, safe mounting, ventilation or cable clearance.
Room depth is longer than the usable lens distance when the projector body and required rear clearance occupy part of it. Measure the planned lens position. A UST projector needs its own cabinet and screen-height diagram and is outside this rear-shelf check.
Before choosing a model
A shorter-throw model helps when the shelf position is fixed. A front-of-room UST setup needs a different piece of furniture and a compatible screen position. Check those permissions and dimensions before treating UST as the easy alternative.
A room measuring 9.5 ft from wall to wall provides less than 9.5 ft from the lens. Our worked example assumes you have already measured the lens position.
Let the person who sees rainbow flashes try the intended DLP model during a returnable trial. Firmware or an anti-RBE setting may help on a specific model, but this page makes no guarantee about that response. A strict simultaneous-color requirement excludes the DLP choices here before brightness or price enters the decision.
With both 120 inches and 9.5 ft fixed, none of the two 3LCD models checked here fits. A smaller picture can be a better purchase than a more expensive projector that repeats the mismatch.
Check the HORIZON 20 firmware before assuming a side shelf means manual setup every evening. XGIMI’s June 2026 V1.4.163 release notes restore autofocus and automatic keystone after lens shift, changing the older product-page restriction.
A marked position still makes repeated placement simpler. Optical reach, available lens shift and game-mode restrictions must fit that position. The update does not establish that every automatic feature remains available in every mode.
Geometry is the first filter. If another person keeps a lamp on, where its light lands still matters. Do not promote a geometric fit into a daylight recommendation. Screen material, light at the screen and the chosen picture mode need a separate check.
Check the brightness and room-light trade-offProducts with a specific job to do
As an Amazon Associate, we earn from qualifying purchases. The calculations and setup advice above work without a purchase.
The shelf is fixed and everyone is comfortable watching DLP
Its 1.0 to 1.3 optical range covers the 1.09 ratio in the worked example. It keeps a 120-inch plan possible without a new mount.
What it leaves unresolvedIts sequential-color DLP engine remains a poor bet for someone already troubled by rainbow flashes. Optical fit alone says nothing about daylight picture quality.
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The projector may have to move between different rooms
Its 0.88 to 1.7 range leaves more lens-position choices than M2 Pro. That flexibility has a purpose when the available shelf changes between homes or rooms.
What it leaves unresolvedIt also uses sequential-color DLP. A broader lens range cannot solve that viewer constraint.
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Rainbow flashes are the problem and a smaller picture is acceptable
Its 3LCD imaging removes the sequential-color mechanism. At 9.5 ft, its fixed 1.2 throw gives roughly a 109-inch optical image. A 120-inch plan needs about 10.46 ft.
What it leaves unresolvedDigital shrinking can make the picture smaller. It cannot enlarge that optical image to 120 inches from the same shelf.
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You can move the lens farther back and want 3LCD with optical zoom
Its 1.32 to 2.15 range starts around 11.50 ft for 120 inches. It becomes a candidate only after the room provides that distance.
What it leaves unresolvedThe body, cables, ventilation and permitted lens-shift combination still need checking against the installation manual. A 9.5 ft lens position fails the 120-inch calculation.
See price & reviews on AmazonThe next decision
When the choice is a larger image from the shelf versus simultaneous-color imaging.
When DLP is acceptable and the available lens position decides the purchase.
For a permanent 3LCD installation after checking the longer throw distance.
Manufacturer specifications establish the inputs. BPF calculates fit, checks combined requirements and counts the steps in the stated routines. These are desk-researched conclusions. We have not tested these products in your home.
1.0 to 1.3 throw, 65 to 200-inch range and DMD imaging.
0.88 to 1.7 throw and DLP imaging.
1.2 to 1.5 throw and single-chip DLP. Read the later firmware notes before relying on the original automatic-adjustment restriction.
Restores autofocus and automatic keystone after lens shift for the HORIZON 20 series. This does not establish that every automatic function works in every mode.
US EF72, 1.2 throw and 3LCD imaging.
1.32 to 2.15 optical range and 3LCD imaging.
Why simultaneous color avoids sequential-color rainbow artifacts.
